On Thu, 5 Dec 1996, Todd Adamson wrote:
> Whenever you start up a new unconfigured portmaster, there are 4
> port numbers that start up right away when you do a show netconnections.
> They are ports(sockets): 67, 23, 1643, 520.
>
> 23 => is used for listening for telnet sessions.
> 1643 => is used for listening for pmconsole sessions.
>
> What are 67 and 520 used for?